<?php
/**
 * @version $Id: controller.php
 * @package ImageAds
 * @author Andrey Sokolnikov <aasfalcon@gmail.com>
 * @copyright (C) 2011 Emergination, LLC. All rights reserved.
 * @license http://www.gnu.org/licenses/gpl-3.0.html GNU/GPL
 */

// no direct access
defined('_JEXEC') or die ('Restricted access');

// controller base class
jimport('joomla.application.component.controller');

// utilites
jimport('joomla.utilities.date');

// use backend table classes
JTable::addIncludePath(JPATH_COMPONENT_ADMINISTRATOR.DS.'tables');

// helper
require_once JPATH_COMPONENT_SITE.DS.'classes'.DS.'helper.php';

/**
 * ImageAds component controller
 * 
 * @package ImageAds
 */
class imageadsController extends JController {
	/**
	 * Display a view
	 */
	function display($cachable = false, $urlparams = false)
	{
		$document = JFactory::getDocument();
        $document->addStyleSheet(IA_URI_ASSETS_SITE . 'css/frontend.css');

		// Set the default view name and format from the Request.
		$vName		= JRequest::getCmd('view', 'default');
		JRequest::setVar('view', $vName);
        
		parent::display($cachable, $urlparams);
		return $this;
	}
    
    /**
     * Save newly created ad
     */
    function saveAd()
    {
		// check the form token
		JRequest::checkToken() or die('Invalid token, please refresh the page');
        
        $table = JTable::getInstance('Ads', 'imageadsTable');
        $user = JFactory::getUser();
        $back_url = 'index.php?option=' . IA_OPTION . '&view=newad&data='
            . base64_encode(serialize(JRequest::get('post')));
        
        // create record
        $date = new JDate();
        $table->reset();
        $table->link_url = JRequest::getString('link_url', null, 'post');
        $table->display_url = JRequest::getString('display_url', null, 'post');
        
        // no double quotes in alt text
        $table->alt_text = str_replace('"', '\'', JRequest::getString('alt_text', null, 'post'));
        $table->user_id = $user->id;
        $table->created_at = $date->toMySQL();
        
        if (!$user->id) {
            $this->setRedirect($back_url, JText::_('COM_IMAGEADS_ERROR_INVALID_USER'), 'error');
            $this->redirect();
        }
        
        $success = $table->check() && $table->store();
        
		$return_url = $success ?
            'index.php?option=' . IA_OPTION . '&view=addetails&id='.$table->id :
            $back_url;
        
		$this->setRedirect($return_url,
			$success ? JText::_('COM_IMAGEADS_AD_CREATED') : $table->getError(),
			$success ? 'message' : 'error');
    }
	
    
    /**
     * Upload ad image
     */
    function uploadImage()
    {
		// check the form token
		JRequest::checkToken() or die('Invalid token, please refresh the page');
        
        // get ad table
        $model = &$this->getModel('AdDetails', 'imageadsModel');
        $model->setId(JRequest::getInt('id', 0));
        $ad = $model->getAd();
        
        $return_url = imageadsHelper::getFullUrl(
            'index.php?option=' . IA_OPTION . '&view=addetails&id=' . $ad->id);
        
        // security: check if current user is the owner, and image is not uploaded yet
        $user = &JFactory::getUser();
        
        if ($ad->user_id != $user->id || $ad->image_filename) {
            $this->setRedirect($return_url,
                    JText::_('COM_IMAGEADS_ERROR_ACCESS_DENIED'), 'error');
            $this->redirect();
        }
        
        $message = imageadsHelper::uploadImage($file, $ad);

        // process file
		$file = JRequest::getVar('image', null, 'files');
        $result = imageadsHelper::uploadImage($file, $ad);
        
        // redirect with message
        $this->setRedirect($return_url, $result['message'],
            $result['success'] ? 'message' : 'error');
    }
}